Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/11789

11789

ZIP 11789 is Sound Beach, New York, in Suffolk County; area codes 631 and 934; Eastern time.

Type
Standard
Time zone
America/New_York
County
Suffolk
Population
7,369
Coordinates
40.9620, -72.9710
☼ Live from 11789 — Sound Beach, NY

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 11789 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 11789
  • 🔢 Type 11789 into a pocket calculator and turn it upside down: GBLII — not quite a word, sorry.
  • ➕ 11789 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 26, a total 2,038 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111000001101
  • 🏠 Its numerical neighbours: 11788 (Hauppauge, NY, 16 mi away) and 11790 (Stony Brook, NY, 9 mi away).
  • 🔄 Backwards, 11789 becomes 98711, which is not a ZIP code at all.
  • 👥 16 other ZIP codes are made of exactly the same digits (11798, 11978, 17981, 18917, 18971, 19178, …). The farthest-flung twin is 97118 in Garibaldi, OR, 2,540 miles away.
  • 🧭 Farther north than 66% of all ZIP codes, and farther east than 93%.
  • 🎯1,345 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 11789 and you would come out at 40.96°S, 107.03°E — 792 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 07m of daylight. Shortest: 9h 13m.
  • 📏 At 1.7 square miles of land, 11789 is bigger than 11% of ZIP codes — room for about 1.3 Central Parks.
🌙 The sky over 11789 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population7,369This ZIP7,369
Households2,907This ZIP2,907
Housing units3,056This ZIP3,056
Median age43.9This ZIP43.9New York39.8US 38.9
Median household income$131,528This ZIP$131,528New York$85,974US $80,734
Median home value$428,500This ZIP$428,500New York$423,800US $332,700
Median gross rent$3,247This ZIP$3,247New York$1,621US $1,413
Bachelor's degree or higher46.3%This ZIP46.3%
Mean commute32.2 minThis ZIP32.2 min
Population density4,355.2 / sq miThis ZIP4,355.2 / sq mi

Business and tax activity

Business establishments101This ZIP101
Employees213This ZIP213
Annual payroll$8,156,000This ZIP$8,156,000
Tax returns filed3,910This ZIP3,910
Total adjusted gross income$336,986,000This ZIP$336,986,000

Land area

Land area1.69 sq miThis ZIP1.69 sq mi
Water area0.92 sq miThis ZIP0.92 sq mi

Other place names in 11789

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 11789

ZIPCityDistance
11778 Rocky Point, NY 2.0 mi
11764 Miller Place, NY 2.2 mi
11766 Mount Sinai, NY 2.9 mi
11786 Shoreham, NY 4.4 mi
11953 Middle Island, NY 4.9 mi
11777 Port Jefferson, NY 5.0 mi
11776 Port Jefferson Station, NY 5.1 mi
11727 Coram, NY 5.9 mi
11961 Ridge, NY 6.0 mi
11784 Selden, NY 7.4 mi

Find every ZIP code within 10 miles of 11789 →

Questions about this ZIP code

Where is ZIP code 11789?

11789 is in Sound Beach, New York, in Suffolk County, part of the New York-Newark-Jersey City, NY-NJ metropolitan area. Its published point location is 40.9620, -72.9710.

What county is 11789 in?

11789 lies in Suffolk County.

What area code is 11789?

Sound Beach uses area codes 631 and 934, from NANPA's telephone records.

What time zone is 11789 in?

11789 uses America/New_York.

How many people live in 11789?

About 7,369 people live in ZIP code 11789, in 2,907 households, at 4,355.2 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 11789?

$131,528 a year, against $85,974 across New York.

What ZIP codes are near 11789?

The closest are 11778 (2 mi), 11764 (2.2 mi), 11766 (2.9 mi), 11786 (4.4 mi) and 11953 (4.9 mi).

Is 11789 a PO Box ZIP code?

11789 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “11789 ZIP Code — Sound Beach, New York (Suffolk County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/11789

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/11789.json

Underlying data is public domain or openly licensed — sources, vintages and licences.